Last September there was a partial eclipse of the moon. Dont know if that affected the ionosphere, but Medium Wave went very funny. Another radio station dropped in where BBC Radio 5 Live should be. Very relaxed, mixed music & speech. Even mixed music & sports commentary - during changes of end at the US Open they played something laid back instead of letting the commentator witter on
From various internal clues, & with the help of Google & a Dutch (!) dictionary, I tracked it down
Now it is my constant companion (provided the headphones have not gone walkabout) as I sit at the computer